使用 Terraform 导入 Azure 上的现有资源

Posted 2023-03-24

【中文标题】使用 Terraform 导入 Azure 上的现有资源

【英文标题】：Using Terraform to import existing resources on Azure

【发布时间】：2018-05-06 11:53:53

【问题描述】：

我在 Azure 上有一个现有的资源组，上面运行着一个 VM，并且一直在使用 Terraform 来尝试将资源导入我的状态文件。

我已经设置了一个骨架文件，据我了解，一旦我导入 TF，应该使用 Azure 中我的资源组上的值填充它

resource "azurerm" "example" 
# ...instance configuration...
  name = "MyResourceGroup"

我从 CLI 运行的命令：

terraform import azurerm_resource_group.MyResourceGroup/subscriptions/MySubscriptionNumber/resourceGroups/MyResourceGroup

来自 Terraform 的消息：

The import command expects two arguments.
Usage: terraform import [options] ADDR ID

  Import existing infrastructure into your Terraform state.

  This will find and import the specified resource into your Terraform
  state, allowing existing infrastructure to come under Terraform
  management without having to be initially created by Terraform.

  The ADDR specified is the address to import the resource to. Please
  see the documentation online for resource addresses. The ID is a
  resource-specific ID to identify that resource being imported. Please
  reference the documentation for the resource type you're importing to
  determine the ID syntax to use. It typically matches directly to the ID
  that the provider uses.

  The current implementation of Terraform import can only import resources
  into the state. It does not generate configuration. A future version of
  Terraform will also generate configuration.

  Because of this, prior to running terraform import it is necessary to write
  a resource configuration block for the resource manually, to which the
  imported object will be attached.

  This command will not modify your infrastructure, but it will make
  network requests to inspect parts of your infrastructure relevant to
  the resource being imported.

Options:

  -backup=path            Path to backup the existing state file before
                          modifying. Defaults to the "-state-out" path with
                          ".backup" extension. Set to "-" to disable backup.

  -config=path            Path to a directory of Terraform configuration files
                          to use to configure the provider. Defaults to pwd.
                          If no config files are present, they must be provided
                          via the input prompts or env vars.

  -allow-missing-config   Allow import when no resource configuration block exists.

  -input=true             Ask for input for variables if not directly set.

  -lock=true              Lock the state file when locking is supported.

  -lock-timeout=0s        Duration to retry a state lock.

  -no-color               If specified, output won't contain any color.

  -provider=provider      Specific provider to use for import. This is used for
                          specifying aliases, such as "aws.eu". Defaults to the
                          normal provider prefix of the resource being imported.

  -state=PATH             Path to the source state file. Defaults to the configured
                          backend, or "terraform.tfstate"

  -state-out=PATH         Path to the destination state file to write to. If this
                          isn't specified, the source state file will be used. This
                          can be a new or existing path.

  -var 'foo=bar'          Set a variable in the Terraform configuration. This
                          flag can be set multiple times. This is only useful
                          with the "-config" flag.

  -var-file=foo           Set variables in the Terraform configuration from
                          a file. If "terraform.tfvars" or any ".auto.tfvars"
                          files are present, they will be automatically loaded.

非常感谢任何帮助

【参考方案1】：

看来您需要先修复脚本文件 - azurerm 不是有效的资源名称，您的意思是：

resource "azurerm_resource_group" "example" 
    # ...instance configuration...
    name = "MyResourceGroup"    

---

从输出中可以看出，import 需要两个参数，ADDR 和 ID - 你只是传递（我假设是）ID。您还需要告诉 terraform 它映射到脚本中的哪个资源：

terraform import azurerm_resource_group.example \
  /subscriptions/MySubscriptionNumber/resourceGroups/MyResourceGroup

【讨论】：

谢谢，@Ben - 我不熟悉 Azure 的具体细节 - 忽略了名称的那部分是 TF 位

基础知识...谢谢...我们仍然需要更好的 terraform 文档。在动态和快速交互方面。文档中的链接应该更加活跃。指向这个线程可能是一个选项（：

【参考方案2】：

当我复制你的 CLI 时，我得到的结果与你相同。

在azurerm_resource_group.MyResourceGroup和/subscriptions/MySubscriptionNumber/resourceGroups/MyResourceGroup之间，需要一个空格。

正确的格式如下：

terraform import azurerm_resource_group.MyResourceGroup /subscriptions/MySubscriptionNumber/resourceGroups/MyResourceGroup

更多信息请参考link。

【参考方案3】：

使用 Terraform Azure 提供程序 v1.16.0 我收到“无法解析 Azure ID”错误消息：

terraform import azurerm_network_security_group.myterraformnsg "subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg"
azurerm_network_security_group.myterraformnsg: Importing from ID "subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg"...
azurerm_network_security_group.myterraformnsg: Import complete!
  Imported azurerm_network_security_group (ID: subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg)

azurerm_network_security_group.myterraformnsg: Refreshing state... (ID: subscriptions/ef37d4b2-686a-494a-9001-5.../networkSecurityGroups/test-nsg)
Error: azurerm_network_security_group.myterraformnsg (import id: subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg): 1 error(s) occurred:

* import azurerm_network_security_group.myterraformnsg result: subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg: azurerm_network_security_group.myterraformnsg: Cannot parse Azure ID: parse subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg: invalid URI for request

查看 Azure 提供程序源代码，我发现您需要输入 Azure 资源的完整 URL - 如下所示：

terraform import azurerm_network_security_group.myterraformnsg "https://portal.azure.com/<id>/resource/subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg"
azurerm_network_security_group.myterraformnsg: Importing from ID "https://portal.azure.com/<id>/resource/subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg"...
azurerm_network_security_group.myterraformnsg: Import complete!
  Imported azurerm_network_security_group (ID: https://portal.azure.com/<id>/resource/subscriptions/<subscriptionId>/resourceGroups/test/providers/Microsoft.Network/networkSecurityGroups/test-nsg)
azurerm_network_security_group.myterraformnsg: Refreshing state... (ID: https://portal.azure.com/<id>/networkSecurityGroups/test-nsg)

Import successful!

The resources that were imported are shown above. These resources are now in
your Terraform state and will henceforth be managed by Terraform.

很遗憾，Import 只会更新 Terraform 状态。

它不会（还）更新配置文件。

IMO，这会降低 Import 功能的用处。

【讨论】：

这解决了我在 Windows 中的问题。看起来它试图引入整个路径（例如c:\programfiles\...）